Chaeles ball and geoege lispbnabd



(No Model.)

0. BALL & G. L-ISPENARD.

DAMPER REGULATOR.

'No: 310,976. Patented Jan. 20, 1885;

il'n'rr zn STATES Parent Orr-ice.

CHARLES BALL AND GEORGE LISPENARD, OF BROOKLYN, NElV YORK, ASSIGNORS TO BALL JEWVELL, OF SAME PLACE.

DAMPER-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 310,976, dated January 20, 1885.

Application filed August 520, 1884. (No model.)

ToaZZ whom it may concern:

Be it known that we, CHARLES BALL and GEORGE LISPENARD, citizens of the United States,and residents of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Damper-Regulators, of which the following is a specification, reference being had to the accompanying drawings.

The invention consists, essentially, in the combination, in a damper-regulator, with a hollow bed-plate and a water-chamber extending therefrom and adapted to contain water through which the pressure of steam is transmitted,of a lever fulcrumed to the said waterchamber, damper-connections attached to and capable of operation by said lever, and a motor cylinder and piston connected with said lever and communicating with the hollow bedplate.

The invention also consists in the combination, in a damper-regulator,with a hollow bed plate adapted to contain water through which the pressure of steam is transmitted, of a lever and damper-connections to be operated thereby, an upright hollow piston-rod extending from and communicating with the bed plate, and surmounted by a stationary piston, and amovable cylinder fitting the piston and connected with said lever for operating it.

The invention also consists in the combination, in a damper-regulator, with a lever and motor for operating it, of damper-connections attached to said lever, an eccentric or camshaped drum capable of rotation by the move ment of said lever,and a weight suspended by a flexible connection from said eccentric or The invention also consists in certain details of construction, hereinafter described.

Figure l is a view, partly in elevation and partly in vertical section, of a damper-regulator constructed according to our invention. Fig. 2 is a plan view of the same. Fig. 3 isa detail view illustrating some of the parts of said regulator most nearly connected with the damper.

Similar letters of reference denote corresponding parts in all the figures.

A designates the water-chamber; B, the bedplate. The bed plate and water-chamber are here shown as integral, being cast in one piece. The hollow of the water-chamber communicates with a cavity in the bed-plate at b. This cavity extends from b to h. At It is an upright hollow piston-rod, O,the interior ofwhich communicates with the cavityin the bed-plate at h. This piston-rod may be screwed into the bed-plate or fastened in any convenient way.v A hollow piston, D, surmounts this rod, and is rigidly attached to its upper end. Surmounting both these is a movable cylinder, E, closed at its upper end, but open at its lower end. The joint between the piston D and the interior of this cylinder is made tight with suitable packing material, and the parts are so arranged and constructed that there will be an uninterrupted connection from the chamber A through the cavity in the bed-plate B, the hollow piston-rod O, and the hollow piston D to the space 1' in the cylinder E above said piston. The piston is here shown as provided with an ordinary cup-leather packing. a is the inletpipe, and a the outlet-pipe,of said chamber A. The drip-cup m is constructed and arranged to catch and retain any leakage of water or drops of grease that may come from the piston.

F designates a lever, which extends through nearly the entire length of the bed-plate. It is fulcrumed in the hinge-jaws 6. These jaws are cast so as to be integral with and form a part of the water-chamber A. This lever is pivoted to the upper end of the cylinder E at f, and extending thence is bent up at f to accommodate the loop or link 0, to which is fastened one end of the cord or strap 0.

H and H are two cylindrical drums fixed on the shaft 12, which turns in suitable bearings on the bed-plate 13. Around one of these drums is wound the cord or strap 0, with its inner end made fast to the periphery of the drum. The cord or strap I is wound in the contrary direction around the other drum, and has its inner end also fastened to the periphery of the drum. Between these two cylindrical drums II and II, and fixed to the same shaft Z), is an eccentric or cam-shaped drum, G. Around this drum is wound the cord or strap (1, one end of which is attached to the periphery of the drum, and the other end to the.

weight 0. This eccentric drum is so arranged that when the damper is open the cord or strap (Z will have its first point of contact with the drum where the radius of the drum is the shortest, as is illustrated in Fig. 1. The cord or strap I, passing from the drum H and-running over the pulley K, extends to the wheel L, around which it is wound and has its inner end fastened to the periphery thereof. This wheel L is mounted upon the shaft k ofthe damper I. This shaft turns in suitable bearings on either side of the smoke stack M. The wheel L is a doublesheave pulley, in one groove of which is wound the cord or strap I, as aforesaid. In the other groove of said wheel, and in a contrary direction, is wound another cord or strap, 1, which has one end fastened to the periphery of the wheel and the other end to the weight N. The chain or cord 9 is fastened to the bed-plate at g and to the lever at g, to prevent too long a swing of the lever F.

To use our invention, the parts are all arranged as illustrated in Fig. 1. The chamber A, the cavity in the bed-plate, the hollow piston-rod C, and the spacer are filled with cold water. Steam is then let on'through the inlet-pipe a. the head of steam grows greater its increased pressure in the chamber A will cause a'portion of the water therein to flow out through the cavity in the bed-plate and the hollow pistonrod into the space 1" in the cylinder. This will cause the cylinder to rise upward and carry with it the lever F. As the lever F rises it unwinds the cord or strap 0 from its one of the drums II. This winds up the cord or strap I on the other drum H. As the cord or strap I is wound on the drum H it is unwound from the wheel L. This causes'the damper P, which is on the same shaft with the wheel L, to turn in the chimney, and so regulate the draft. Then the pressure of the steam becomes less, the weights 0 and N, drawing in a direction contrary to the lever F, will return the various parts ofthe apparatus toward their original position. Asthe cam-shaped or eccentric drum G turns in winding up the cordor strap (1, it presents to the It will then befound that ascord or strap in succession parts of its surface farther and farther from the center ofv motion. This gives the weight 0 gradually longer and longer leverage to resist the motion of the lever F.

\Vhat we claim as our invention, and desire to secure by Letters Patent, is-

1. In a damper-regulator, the combination, with a hollow bed-plate and a water-chamber extending therefrom and adapted to contain water through which the pressure of steam is transmitted, of a lever fulcrumed to the water-chamber, damper-connections attached to and capable of operation by the lever, and a motor-cylinderand piston connected with said lever and communicating with the hollow bedplate, substantially as herein described.

2. In a damper-regulator, the combination, with a hollow bed-plate adapted to contain water through which. the pressure of steam is transmitted, of a lever and damper-connections to be operated thereby, an upright hollow pistonrod communicating with the bedplate and surmounted by a stationary piston, and a movable cylinder fitting the piston and connected with said lever for operating it, substantially as herein described.

3. The combination of the hollowbed-plate B and communicating water-chamber A, the damper-operating lever F, fulcrumed to said water-chamber, the hollow piston-rod G, and stationary piston D, and the movable cylinder E, fitting the piston and connected with the lever, substantially as herein described.

4. In a damper-regulator, the combination, with a lever and a motor for operating it, of damper-connections attached to said lever, an eccentric or camshaped drum capable of retation by the movement of said lever, and a weight suspended by a flexible connection from said eccentric or cam-shaped drum opposing a variable resistance to the movement of the lever, substantially as herein described.

5. In a damper-regulator, the combination, with a lever andits operating-motor, of aconcentrie drum and an eccentric or camshaped drum connected and capable of rotation to gether, connections through which said lever serves to rotate said drums and operate the damper, and a weight suspended by a flexible connection from the eccentric or cam-shaped drum and opposing a variable resistance to the movement of said lever, substantially as herein described.

CHARLES BALL. GEORGE LISP-ENARD.

Witnesses:

O. HALL, FREDK. HAYNES.

IIO 

